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AU2001241641A1 - Piston position measuring device - Google Patents

Piston position measuring device

Info

Publication number
AU2001241641A1
AU2001241641A1 AU2001241641A AU4164101A AU2001241641A1 AU 2001241641 A1 AU2001241641 A1 AU 2001241641A1 AU 2001241641 A AU2001241641 A AU 2001241641A AU 4164101 A AU4164101 A AU 4164101A AU 2001241641 A1 AU2001241641 A1 AU 2001241641A1
Authority
AU
Australia
Prior art keywords
measuring device
position measuring
piston position
piston
measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001241641A
Inventor
Terrance F Krouth
David E Wiklund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosemount Inc
Original Assignee
Rosemount Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rosemount Inc filed Critical Rosemount Inc
Publication of AU2001241641A1 publication Critical patent/AU2001241641A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Actuator (AREA)
AU2001241641A 2000-03-08 2001-02-21 Piston position measuring device Abandoned AU2001241641A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US52113200A 2000-03-08 2000-03-08
US09521132 2000-03-08
PCT/US2001/005616 WO2001066954A2 (en) 2000-03-08 2001-02-21 Piston position measuring device

Publications (1)

Publication Number Publication Date
AU2001241641A1 true AU2001241641A1 (en) 2001-09-17

Family

ID=24075491

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001241641A Abandoned AU2001241641A1 (en) 2000-03-08 2001-02-21 Piston position measuring device

Country Status (3)

Country Link
US (1) US6817252B2 (en)
AU (1) AU2001241641A1 (en)
WO (1) WO2001066954A2 (en)

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EP2666510B1 (en) 2007-12-20 2017-10-18 University Of Southern California Apparatus for controlled delivery of therapeutic agents
US8482607B2 (en) * 2008-03-10 2013-07-09 Timothy David Webster Position sensing of a piston in a hydraulic cylinder using a photo image sensor
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US9333297B2 (en) 2008-05-08 2016-05-10 Minipumps, Llc Drug-delivery pump with intelligent control
DE102009023168A1 (en) * 2009-05-29 2010-12-02 Festo Ag & Co. Kg Position measuring device for detecting the position of at least one actuator of a fluidic system without position sensor
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CN101819052B (en) * 2010-04-21 2013-02-27 无锡求信流量仪表有限公司 A flow transmitter equipped with dual differential pressure sensors and a method for measuring differential pressure
DK2567102T3 (en) 2010-05-06 2019-01-28 Scancon Encoders As Method and apparatus for determining the position of a piston in a hydraulic or pneumatic cylinder
US8558408B2 (en) 2010-09-29 2013-10-15 General Electric Company System and method for providing redundant power to a device
US8278779B2 (en) 2011-02-07 2012-10-02 General Electric Company System and method for providing redundant power to a device
RU2016136704A (en) 2011-02-16 2018-12-11 КРАУН ЭКВАЙПМЕНТ КОРПОРЕЙШН, Корпорация штата Огайо LOADING AND UNLOADING VEHICLE CALCULATING THE SPEED OF THE MOBILE UNIT BY THE SPEED OF THE ENGINE OF THE LIFTING MECHANISM
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JP5645285B1 (en) * 2013-08-28 2014-12-24 株式会社オーバル Piston prober
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BR112017013112B1 (en) * 2014-12-19 2022-10-04 MAGNETI MARELLI S.p.A. HYDRAULIC REGENERATIVE SHOCK ABSORBER FOR VEHICLE SUSPENSION
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WO2017023303A1 (en) 2015-08-05 2017-02-09 Stren Microlift Technology, Llc Hydraulic pumping system for use with a subterranean well
US10167865B2 (en) 2015-08-05 2019-01-01 Weatherford Technology Holdings, Llc Hydraulic pumping system with enhanced piston rod sealing
US20170146006A1 (en) * 2015-11-20 2017-05-25 Weatherford Technology Holdings, Llc Operational control of wellsite pumping unit with continuous position sensing
US20170146007A1 (en) * 2015-11-20 2017-05-25 Weatherford Technology Holdings, Llc Operational control of wellsite pumping unit with displacement determination
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US10467881B2 (en) 2018-01-23 2019-11-05 Caterpillar Inc. Hydraulic accumulator health monitoring and remaining life system
DE102018010153B4 (en) * 2018-12-28 2021-10-28 Bomag Gmbh Construction machine, in particular road milling machine, and a method for controlling the lifting position of a piston-cylinder unit of a lifting column of a construction machine
CN113700700B (en) * 2021-08-27 2024-04-05 四川交达预应力工程检测科技有限公司 Device and method for measuring displacement of piston cylinder of prestressing jack
CN116046093A (en) * 2023-03-06 2023-05-02 四川职业技术学院 High-precision hydraulic oil flow detection device and detection method thereof

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Also Published As

Publication number Publication date
US20030084719A1 (en) 2003-05-08
WO2001066954A2 (en) 2001-09-13
WO2001066954A3 (en) 2002-01-10
US6817252B2 (en) 2004-11-16

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